Method for checking plausibility of performance coding of component of vehicle, and vehicle computer

Abstract

A method according to the invention for checking the plausibility of the performance coding of a component of a vehicle comprises the following method steps shown in the description. In one step, a performance coding stored in the component is read in. The performance coding can be stored in the component in any electronic form, for example in a read-only memory. In another method step, characters of a vehicle-specific identification number that contain information regarding the vehicle performance are read out. In another method step, a comparison between the relevant characters of the vehicle-specific identification number that contain information regarding the vehicle performance and the performance coding stored in the component is carried out. On the basis of the result of the comparison, the component is enabled if there is agreement between the performance coding stored in the component and the performance information that has been read out. Enabling the component allows the vehicle to be started, for example. In the absence of agreement, a substitute response occurs, for example the component and / or the vehicle is disabled.

Description

technical field [0001] The invention relates to a method and a vehicle computer for plausibility testing of the performance codes of vehicle components. Background technique [0002] In modern vehicles, important components, such as drive controls, are protected by immobilizers. Here, the immobilizer sends an activation code to the drive controller when the vehicle is started. After a plausibility check of the transmitted enabling code, the starting of the vehicle is enabled. [0003] Higher development costs lead to hardware identical components being installed in different vehicles. The parameters that are to be applied specifically to the vehicle are usually only stored in the components on the software side. This opens up the possibility of influencing vehicle characteristics, eg the performance of the vehicle, by substituting components, eg motor controllers. This problem can also be countered by protection via an immobilizer, since the enabling code is no longer co...

AI Technical Summary

Problems solved by technology

[0006] Disadvantageously, a plausibility check of the property code of the vehicle component via the immobilizer is very complex, since the immobilizer as an immobilizer must meet very high safety standards and correspondingly the communication with the immobilizer must also be secured accordingly.

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